Ryobi ZRD43K 5.5-Amp 3/8 in. Variable Speed Drill (Certified Refurbished) This Certified Refurbished product is tested & certified by Ryobi to look and work like-new. The product includes all original accessories, and is backed by a 1 Year warranty. AC powered drill features 3/8 in. keyless chuck for quick bit changes Variable-speed trigger offers enhanced control Lock-on feature for continuous drilling and reduced fatigue 5.5-Amp motor provides powerful performance